Shear type damping device for connecting U-shaped wall and steel column

Abstract

The utility model discloses a shear type damping device for connecting a U-shaped wall and a steel column. The shear type damping device comprises a lead core damper and a connecting piece, the connecting piece is of a T-shaped steel structure; the two ends of each lead core damper are fixedly connected with the connecting pieces, the lead core dampers are fixedly connected with web plates of the connecting pieces, and flange plates of the adjacent connecting pieces are arranged on the two sides of the lead core dampers correspondingly and are arranged in parallel. The shear type damping device can be used for connecting a U-shaped wall and a steel column through the combination of the T-shaped steel plate and the damper, achieves the effects of energy dissipation, supporting, structure stabilization and shock absorption, and has the advantages of being simple in structure and easy to construct.

Description

Technical Field

[0001] The utility model relates to the technical field of U-shaped wall-steel column energy dissipation composite lateral support connection, and specifically refers to a shear damping device for connecting a U-shaped wall and a steel column. Background Art

[0002] Lead, as a plastic damping material, based on its high density and plasticity, can quickly deform when subjected to vibration, thereby reducing the energy transmitted to the surrounding environment.

[0003] In building design, lead is generally used in the design of seismic isolation bearings as the main energy-consuming component. By reducing the vibration and stress of the structure, lead core seismic isolation bearings can improve the seismic performance of building structures and reduce the fatigue and damage caused by vibration. The damping effect of lead core seismic isolation bearings can also effectively reduce the displacement of the structure, reduce the interaction between the upper structure and the adjacent lower structure, and improve the overall stability of the structure. On the other hand, lead can also act on dampers. Under the action of external vibration or displacement, the lead core quickly deforms, thereby converting the vibration energy into deformation energy to achieve the effect of damping and energy dissipation. Therefore, lead core dampers are usually used to reduce the vibration of building structures caused by earthquakes or wind vibrations, thereby improving the seismic performance and stability of buildings.

[0004] For the steel columns on the firewall side of the valve hall of the UHV converter station, tie rods and supports cannot be set, and U-shaped wall-steel column lateral energy dissipation supports need to be set. When steel columns with a relatively large height are subjected to external forces such as horizontal loads or earthquakes, they may undergo bending deformation or cause large vibration responses, resulting in large displacements and deformations at the upper part of the steel columns, which may affect the overall stability of the building structure. To address this problem, it can be considered to set U-shaped dampers between the three walls of the U-shaped wall and the steel columns as connections. However, traditional U-shaped dampers can only play a role in damping and vibration reduction in the horizontal or vertical directions, and the energy dissipation effects in different directions are inconsistent. Therefore, various directions of vibration and loads need to be fully considered during the design process and corresponding energy dissipation measures need to be taken to ensure the overall stability and safety of the structure.

[0005] In view of this, the applicant considers providing a new type of damping device to solve the problem of U-shaped wall-steel column energy dissipation composite lateral support in the valve hall of the UHV converter station, so as to improve the overall stability and safety of the valve hall of the UHV converter station. Summary of the Utility Model

[0006] To overcome the deficiencies of the above technologies, the purpose of the utility model is to provide a shear damping device for connecting a U-shaped wall and a steel column, to solve the problems of elastic energy dissipation and lateral support design of the U-shaped shear wall-steel column, as well as the stability design problem of the steel column.

[0007] To achieve the above object, the technical solution adopted by the present utility model is as follows:

[0008] A shear damping device for connecting a U-shaped wall and a steel column, comprising a lead core damper and a connecting member; the connecting member is a T-shaped steel structure; both ends of the lead core damper are fixedly connected with the connecting member, and the lead core damper is fixedly connected with the web of the connecting member, and the flange plates of adjacent connecting members are respectively arranged on both sides of the lead core damper and are relatively parallel.

[0009] Preferably, two or more lead core dampers are provided, and adjacent two lead core dampers are fixedly connected with the same connecting member.

[0010] Preferably, the steel column is an H-shaped steel column; among adjacent two connecting members, the flange plate of one connecting member is fixedly attached to the inner surface of the U-shaped wall, and the flange plate of the other connecting member is fixedly attached to the flange plate or web of the steel column to fixedly connect the U-shaped wall and the steel column.

[0011] Preferably, the lead core damper includes two end plates and a damping structure arranged between the two end plates; the damping structure includes a lead core, an elastic layer wrapped on the surface of the lead core, and a constraint layer wrapped on the surface of the elastic layer.

[0012] Preferably, the elastic layer is a rubber coating layer.

[0013] Preferably, the constraint layer is a laminated structure, including a rubber layer and a steel plate layer that are adhesively bonded to each other, and the rubber layer and the steel plate layer are alternately stacked.

[0014] Preferably, the adjacent rubber layer and steel plate layer are adhesively bonded by vulcanization.

[0015] Preferably, the two end plates of the lead core damper are respectively fixedly attached to the webs of the two connecting members at its two ends.

[0016] Preferably, the fixed attachment is by bolted connection.

[0017] Preferably, a gasket for fixing the bolt is provided between the bolt and the U-shaped wall.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] The shear damping device of the present utility model, through the combination of the T-shaped steel plate and the damper, can be used to connect the U-shaped wall and the steel column, and achieve the effects of energy dissipation, support, structural stability and shock absorption, and has the advantages of simple structure and simple construction.

[0020] This utility model adopts a lead core damper, which dissipates seismic energy through plastic deformation when stressed, thereby reducing the energy transmitted to the steel column, decreasing the seismic response of the structure, improving the seismic resistance of the structure, and can also limit the large displacement of the steel column and enhance the overall stability of the steel column.

[0021] The lead core damper of this utility model combines rubber and a lead core, providing multiple energy dissipation mechanisms, and improving the energy dissipation efficiency through the combined action of the elastic deformation of the rubber and the plastic deformation of the lead core. The outer surface of the lead core is wrapped with an elastic layer made of rubber material, which can protect the lead core from environmental influences and extend the service life of the damper.

[0022] The shear damper device of this utility model can be provided with multiple lead core dampers, and the combined action of multiple lead core dampers can better play the role of energy dissipation.

[0023] In this utility model, the connection methods between the lead core damper and the T-shaped steel plate, and between the T-shaped steel plate and the U-shaped wall and the steel column are all bolt connections, which do not require complex welding processes, reducing the construction difficulty and time. And the bolt connection makes the installation and adjustment of the damper more flexible, convenient for disassembly and replacement, facilitating regular inspection and maintenance of the damper, and ensuring that the limit connection component can operate effectively for a long time. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of a shear damper device in this utility model;

[0025] Figure 2 is a structural cross-sectional view of the lead core damper;

[0026] Figure 3 is a schematic structural diagram of a shear damper device in this utility model;

[0027] Figure 4 is a schematic diagram of connecting the U-shaped wall and the steel column through a shear damper device of this utility model;

[0028] Figure 5 is Figure 4 top view of;

[0029] In the figure: 1. U-shaped wall; 2. Steel column; 3. Lead core damper; 4. End plate; 5. Damper structure; 6. Lead core; 7. Elastic layer; 8. Constraint layer; 9. Rubber layer; 10. Steel plate layer; 11. Connector; 12. First connector; 13. Second connector; 14. Third connector; 15. Bolt; 16. Gasket. Detailed Description of the Invention

[0030] To better explain the present utility model, the following further clarifies the main content of the present utility model in conjunction with the accompanying drawings and specific embodiments. However, the content of the present utility model is not limited to the following embodiments.

[0031] Embodiment 1

[0032] As Figure 1 shown, a shear damping device for connecting a U-shaped wall 1 and a steel column 2 includes a lead core damper 3 and a connecting member 11. In this embodiment, there are two connecting members 11, namely a first connecting member 12 and a second connecting member 13; the connecting member 11 is a T-shaped steel structure, and the T-shaped steel structure can be directly purchased in standard specifications of T-shaped steel plates or formed by welding rectangular steel plates. The lead core damper 3 is fixedly arranged between the webs of the first connecting member 12 and the second connecting member 13. The flange plates of the first connecting member 12 and the second connecting member 13 are alternately arranged on both sides of the lead core damper 3 and are relatively parallel, so as to keep the stress directions on both sides of the lead core damper 3 parallel, thereby maintaining the stability of the lead core damper 3 during use.

[0033] As Figure 2 shown, the lead core damper 3 includes two end plates 4 and a damping structure 5 arranged between the two end plates 4; various connection methods can be considered between the end plates 4 and the damping structure 5, not limited to glue bonding, welding, and rubber impregnation. The damping structure 5 includes a lead core 6, an elastic layer 7 wrapped on the surface of the lead core 6, and a constraint layer 8 wrapped on the surface of the elastic layer 7. The elastic layer 7 is a rubber coating layer made of rubber material, which can prevent the wear of the lead core 6 caused by friction during use, extend the service life of the lead core 6, and the elastic layer 7 wrapped outside the lead core 6 has certain elasticity and damping characteristics. Wrapping the lead core 6 can further improve the vibration reduction and energy dissipation effect of the overall lead core damper 3, maintain high structural stability, and meet the shock absorption requirements under high-intensity earthquakes. The constraint layer 8 is a laminated structure, including a rubber layer 9 and a steel plate layer 10 that are adhesively bonded to each other, and the rubber layer 9 and the steel plate layer 10 are alternately stacked. The adjacent rubber layer 9 and steel plate layer 10 are formed by vulcanization bonding to ensure the connection stability between the rubber layer 9 and the steel plate layer 10. The constraint layer 8 composed of the laminated rubber ring and steel ring provides additional support and protection for the lead core 6, and the steel plate layer 10 restricts and controls the shear of the lead core 6 in the horizontal plane, so that the inner lead core 6 reaches global yield energy dissipation. The high elasticity of the rubber layer 9 allows the lead core damper 3 to have a greater deformation to ensure the connection stability between the rubber layer 9 and the steel plate layer 10. Different from general dampers that only rely on the internal lead core for energy dissipation, when the rubber is high-damping rubber, the constraint layer 8 and the lead core 6 have a dual energy dissipation effect.

[0034] The two end plates 4 of the lead core damper 3 are respectively fixed in contact with the webs of the first connecting member 12 and the second connecting member 13. The fixed contact is achieved by bolted connection 15. After reserved screw holes 15 are provided at corresponding positions on the two end plates 4 of the lead core damper 3, the web of the first connecting member 12 and the web of the second connecting member 13, they are fixed in contact by the bolt 15.

[0035] This shear damping device is used to connect the U-shaped wall 1 and the steel column 2. The steel column 2 is an H-shaped steel column, and the connection method is as follows:

[0036] The flange plate of the first connecting member 12 is fixedly connected to the U-shaped wall 1. The flange plate of the second connecting member 13 is fixedly connected to the flange plate or web of the steel column 2. By using three such shear damping devices, the three inner walls of the U-shaped wall 1 can be connected to the steel column 2, connecting the two sides of the web of the steel column 2 and one flange plate respectively.

[0037] The connection method between the first connecting member 12 and the U-shaped wall 1 is bolted connection 15. By providing reserved screw holes for the flange plate of the first connecting member 12 and the U-shaped wall 1, the bolt 15 is passed through the reserved screw hole of the U-shaped wall 1, and after covering the gasket 16, the bolt 15 is tightened. It is also possible to consider embedding a steel section in the U-shaped wall 1 and then connecting it to the first connecting member 12 by the bolt 15, or directly fixing the first connecting member 12 by driving expansion screws. After reserved screw holes are provided for the flange plate of the second connecting member 13 and the steel column 2, they are connected by the bolt 15.

[0038] As a connection node between the U-shaped wall 1 and the steel column 2, this shear damping device can not only dissipate vibration energy but also play a restraining role to prevent the steel column 2 from undergoing excessive displacement.

[0039] Embodiment 2

[0040] As Figure 3 shown, the difference between this embodiment and Embodiment 1 is that: for a shear damping device used to connect the U-shaped wall 1 and the steel column 2, there are three connecting members 11 and two lead core dampers 3.

[0041] There are three connecting members 11, namely the first connecting member 12, the second connecting member 13 and the third connecting member 14. Two lead core dampers 3 are arranged between the three connecting members 11. The arrangement of the two lead core dampers 3 can better adapt to various deformations and play a role in energy dissipation. After screw holes are reserved at the corresponding positions of the end plates 4 of the two lead core dampers 3, the webs of the first connecting member 12, the second connecting member 13 and the third connecting member 14, the end plates 4 of the two lead core dampers 3 are respectively fixedly connected to the webs of the first connecting member 12, the second connecting member 13 and the third connecting member 14 through bolts 15. The webs on both sides of the second connecting member 13 are respectively connected to the end plates 4 of the two lead core dampers 3. The flange plates of the second connecting member 13 are arranged on one side of the lead core damper 3, and the flange plates of the first connecting member 12 and the third connecting member 14 are arranged on the other side of the lead core damper 3 and are arranged parallel to the flange plates of the second connecting member 13.

[0042] As Figures 4 - 5 shown, this shear damper device is used to connect the U-shaped wall 1 and the steel column 2. The steel column 2 is an H-shaped steel column, and the connection method is as follows:

[0043] After screw holes are reserved on the flange plates of the first connecting member 12 and the third connecting member 14, they are fixedly connected to the U-shaped wall 1 through bolts 15. The bolts 15 pass through the reserved screw holes of the U-shaped wall 1, and after covering the gasket 16, the bolts 15 are tightened. After screw holes are reserved on the flange plates of the second connecting member 13, they are fixedly connected to the flange plate or web of the steel column 2 through bolts 15. The three sides of the inner wall of the U-shaped wall 1 can be connected to the steel column 2 through three such shear damper devices, respectively connecting the two sides of the web and one flange plate of the steel column 2, and the three shear damper devices are at the same height, improving the overall stability and safety.

[0044] The utility model combines the use of a lead core damper and rubber; although the lead core damper can absorb and dissipate vibration energy, due to the plasticity and inertia of the lead core, it may not be able to respond quickly under high-frequency vibrations, so that part of the vibration energy is still transmitted to the structure. The restraint of the rubber layer can help control the deformation range and frequency of the lead core, prevent its high-frequency vibration or excessive deformation, and contribute to improving the stability and durability of the lead core damper. The steel ring of the steel plate layer can restrain the lead core, and the rubber and the steel ring are vulcanized and formed together to restrain and control the lead core to shear only in the horizontal plane, so that the lead core inside reaches global yield energy dissipation. And to a certain extent, the restraint of the rubber can also play a role in vibration isolation, reducing the energy of external vibrations transmitted to the lead core damper and improving the shock absorption effect of the damper. In addition, the rubber material has good antioxidant and anti-aging properties, which can effectively prevent the lead core damper from being affected by oxidation and corrosion during long-term use.

[0045] The above has shown and described the basic principles and main structural features of the present utility model. The present utility model is not limited by the above examples. Without departing from the spirit and scope of the present utility model, various changes and improvements will occur to the present utility model, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A shear damping device for connecting a U-shaped wall (1) and a steel column (2), characterized in that: It includes a lead core damper (3) and a connecting member (11); the connecting member (11) is a T-shaped steel structure; both ends of the lead core damper (3) are fixedly connected with the connecting member (11), and the lead core damper (3) is fixedly connected with the web of the connecting member (11), and the flange plates of adjacent connecting members (11) are respectively arranged on both sides of the lead core damper (3) and are relatively parallel.

2. The shear damping device according to claim 1, wherein: There are two or more lead core dampers (3), and adjacent two lead core dampers (3) are fixedly connected with the same connecting member (11).

3. The shear damping device according to claim 1 or 2, characterized in that: The steel column (2) is an H-shaped steel column; among adjacent two connecting members (11), the flange plate of one connecting member (11) is fixedly attached to the inner surface of the U-shaped wall (1), and the flange plate of the other connecting member (11) is fixedly attached to the flange plate or web of the steel column (2) to fixedly connect the U-shaped wall (1) and the steel column (2).

4. The shear damping device according to claim 3, wherein: The lead core damper (3) includes two end plates (4) and a damping structure (5) arranged between the two end plates (4); the damping structure (5) includes a lead core (6), an elastic layer (7) wrapped on the surface of the lead core (6), and a constraint layer (8) wrapped on the surface of the elastic layer (7).

5. The shear damping device according to claim 4, characterized in that: The elastic layer (7) is a rubber coating layer.

6. The shear damping device according to claim 4, wherein: The constraint layer (8) is a laminated structure, including a rubber layer (9) and a steel plate layer (10) bonded to each other, and the rubber layer (9) and the steel plate layer (10) are alternately stacked.

7. The shear damping device according to claim 6, characterized in that: The adjacent rubber layer (9) and steel plate layer (10) are bonded by vulcanization.

8. The shear damping device according to claim 4, characterized in that: The two end plates (4) of the lead core damper (3) are respectively fixedly attached to the webs of the two connecting members (11) at its two ends.

9. The shear damping device according to claim 8, wherein: The fixed attachment is by fixed connection with bolts (15).

10. The shear damping device according to claim 9, wherein: A gasket (16) for fixing the bolt (15) is arranged between the bolt (15) and the U-shaped wall (1).

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